Senior Security Engineer

Join our team as a Senior Hardware Security Engineer!We are looking for two talented and experienced individuals who are eligible to work in the United States without requiring visa sponsorship or E-Verify. This position is fully onsite at our Seattle campus, requiring presence five days a week. Candidates must reside within a commutable distance (approximately 30 miles) from downtown Seattle.Role OverviewThe successful candidate will possess extensive expertise in hardware security and be able to clearly communicate the rationale behind their decisions. As a recognized expert, the Hardware Security Engineer will contribute to the creation of technical and business solutions, often being consulted for cross-functional projects and demonstrating the ability to work autonomously with minimal oversight.In this role, you will earn the trust and respect of engineering teams and senior stakeholders through your leadership, accountability, and strategic insights, while ensuring excellence throughout the program lifecycle.Please note: This is a 12-month engagement requiring onsite work in Seattle, WA, five days a week. Candidates must be located within a 30-mile radius of the client campus and must be authorized to work in the U.S. without sponsorship.Your Responsibilities:Analyze System-on-a-Chip (SoC) security architectures to validate secure boot chains, root-of-trust enforcement, anti-rollback protections, and cryptographic controls at the silicon level.Validate hardware security requirements through hands-on testing of physical devices, evaluation boards, and chip samples across development and production lifecycles.Execute hardware security testing techniques, including fault injection attempts, debug interface probing (JTAG/BDM), and resistance validation against physical attacks.Review schematics, board layouts, and hardware designs to ensure correct implementation of secure key storage, tamper mitigations, and debug access restrictions.Verify manufacturing security processes by assessing secure provisioning flows, key injection procedures, and production lifecycle state transitions.Inspect manufactured hardware samples to detect unauthorized component substitution, malicious modification, or deviations from approved security designs.Assess cryptographic implementations (RSA, AES, HMAC, PQC) embedded in hardware and firmware to confirm secure key handling and isolation.Collaborate with silicon vendors, OEMs, and manufacturing partners to remediate security findings and validate corrective actions at the device level.

At Anduril Industries, we are redefining military capabilities through innovation and advanced technology. Our mission is to enhance the U.S. and allied forces by integrating cutting-edge technology into defense systems. With our proprietary Lattice OS, we transform complex data streams into real-time, 3D command and control capabilities. As we navigate a new era of strategic competition, we are dedicated to delivering state-of-the-art autonomy, AI, computer vision, sensor fusion, and networking solutions to the military faster than ever before.JOIN OUR TEAMWe are seeking an experienced Senior Security Engineer to join our Security Engineering team, focusing on establishing robust defensive measures to safeguard our advanced defense technology infrastructure. This role is pivotal in securing Anduril's Operational Technology (OT) and Industrial Control Systems (ICS) environments. You will design and implement foundational security solutions that are essential to the deployment of our revolutionary factory systems.

About the TeamAt OpenAI, we are driven by a mission to ensure that artificial general intelligence is a force for good for all humanity. Our Security team plays a crucial role in safeguarding OpenAI's technology, personnel, and products. We pride ourselves on our technical expertise in building secure systems while maintaining an operational focus. Our core principles include prioritizing impactful security initiatives, empowering researchers, preparing for emerging transformative technologies, and fostering a strong security culture across the organization.About the RoleAs an Application Security Engineer, you will take the lead in identifying and mitigating security vulnerabilities within our software applications. Your responsibilities will include developing security tools, performing code reviews, conducting penetration tests, and executing thorough security assessments.We seek individuals who will collaborate closely with our development teams to embed secure coding practices throughout the software development lifecycle, proactively preventing potential security risks. You will also offer security guidance to developers and other stakeholders, thereby nurturing a culture of security awareness within our organization.This role is ideally based in Seattle, San Francisco, or New York City, but we are open to considering remote candidates. Our hybrid work model allows for three days in-office each week, and we provide relocation assistance for new hires.In this role, you will:Conduct Security Assessments: Regularly perform security assessments, code reviews, and penetration tests to uncover vulnerabilities in our applications and software.Develop and Implement Security Tools: Design and execute security tools, frameworks, and methodologies to safeguard applications from security threats.Collaborate with Development Teams: Partner with development teams to ensure security best practices are seamlessly integrated throughout the software development lifecycle (SDLC), including secure coding guidelines.Conduct Threat Modeling and Risk Assessment: Engage in threat modeling and risk assessments to proactively identify potential vulnerabilities and formulate effective mitigation strategies.Manage Vulnerabilities: Track, analyze, and address vulnerabilities within applications, offering guidance and support for remediation efforts.Lead Incident Response: Take charge in responding to security incidents, ensuring timely investigation and resolution of security breaches.

We are seeking a skilled Security Application Engineer to join our dynamic team at usm2. In this role, you will be responsible for developing and implementing security measures for our applications, ensuring the integrity and safety of our software systems. You will work closely with cross-functional teams to identify vulnerabilities and recommend effective solutions.

At Anduril Industries, we are redefining defense technology with a commitment to enhance military capabilities for the U.S. and its allies. Our innovative approach integrates cutting-edge technology and modern business models into the defense sector, revolutionizing the design, production, and distribution of military systems. Powered by Lattice OS, our artificial intelligence-driven operating system transforms vast data inputs into a dynamic, real-time 3D command and control interface. In an age of strategic competition, Anduril is dedicated to delivering advanced autonomy, AI, computer vision, sensor fusion, and networking solutions to military operations at unprecedented speeds.ABOUT THE TEAMJoin our Security Engineering team at Anduril, where we seek a skilled security engineer to build top-tier defensive measures safeguarding our advanced defense technology infrastructure. In this pivotal role, you will architect and implement robust security frameworks that protect our global network while collaborating across the enterprise as a key security partner.

Join our dynamic team at Artech Information Systems LLC as a Security Engineer. In this critical role, you will be responsible for ensuring the security and integrity of our information systems. You will work closely with cross-functional teams to develop and implement security measures that protect sensitive data and maintain compliance with industry standards.

Join our dynamic team at Prosidian Consulting as an IT Service Management (ITSM) Security Engineer III. This role is critical in safeguarding our clients' information systems and ensuring compliance with industry standards. You will be responsible for implementing and maintaining security measures, analyzing security breaches, and developing robust security protocols.As a vital member of our IT team, you will collaborate with various departments to assess potential security risks and recommend improvements. Your expertise will help in identifying vulnerabilities and implementing solutions to enhance the security posture of our organization.

Join Hive as a Security Engineer, where you will play a crucial role in safeguarding sensitive company data and implementing robust security protocols. You will collaborate with cross-functional teams to enhance our security posture, manage data governance, and respond to potential threats. Your expertise will be vital in leading security operations and conducting risk assessments to ensure the integrity of our innovative AI solutions.

About Our TeamJoin the dynamic IT team at OpenAI, where we prioritize the security and comfort of our dedicated researchers, engineers, and support staff. As an Enterprise Security Engineer, you'll thrive in a fast-paced, technical environment, ensuring our team has the necessary tools and resources to operate efficiently and securely.Our agile IT team offers the perfect platform for you to explore various domains and contribute to building an exceptional enterprise security program. We are fully supported and resourced, enabling us to provide top-tier security solutions to our teams.About the RoleIn the role of Enterprise Security Engineer, you will take charge of implementing and overseeing the security of OpenAI's internal information systems and processes. Collaborating closely with our IT and Security teams, you will enhance security capabilities, enforce policies, and vigilantly monitor for potential threats.This position is open to remote work opportunities, with relocation assistance available for candidates moving to Seattle.Your Responsibilities Include:Design and enforce robust security measures to safeguard our company's information assets from unauthorized access, disclosure, or misuse.Continuously monitor internal and external systems for security threats and respond proactively to alerts.Contribute to and enforce our IT and Security policies and procedures to maintain compliance and security.Collaborate with the IT department to enhance our infrastructure using industry best practices in AzureAD, GSuite, GitHub, and other SaaS tools.Educate employees on best practices for securing their endpoints, office AV, and network infrastructure.Establish innovative sharing controls and monitoring mechanisms to protect company data, including intelligent group management and Data Loss Prevention (DLP).Implement forward-thinking security models, such as “secure by default” and “zero trust,” to create sustainably secure environments for our teams.Identify and address vulnerabilities in our internal systems, adhering to best practices for data security.Leverage AI-driven models to enhance security detection, response, data classification, and other security-related tasks.

Join Our TeamOtter.ai is on the lookout for a highly skilled Senior Security Engineer to fortify our cloud infrastructure and the systems that power our AI-driven meeting tools. In this pivotal role, you will have the opportunity to design and implement robust security measures, enhance our detection and response capabilities, and automate processes to mitigate cloud risks. Collaborating closely with our DevOps and Engineering teams, you will ensure our cloud deployments are secure by default.This is a hands-on role tailored for individuals who thrive in dynamic environments, expertly balancing risk management with the need for speed in product delivery while building scalable security capabilities.Your ContributionsDesign and implement secure cloud architectures and guardrails across our environments, including network segmentation, encryption, key management, and secure service patterns.Manage IAM security: oversee access controls, least-privilege policies, privileged access workflows, and conduct regular access reviews.Develop and scale cloud security infrastructure (logging, monitoring, alerting, vulnerability management, and DLP controls as necessary).Enhance CI/CD and infrastructure-as-code with security automation, including secrets detection, dependency scanning, IaC scanning, and policy-as-code.Monitor cloud security signals and investigate alerts; continuously refine detection quality to minimize false positives.Lead incident response efforts for cloud security events, enhancing playbooks, forensics readiness, and response processes.Conduct cloud security assessments and threat modeling for new architectures and significant changes; collaborate with Engineering to drive remediation efforts.

At Anduril Industries, we are revolutionizing defense technology to empower the U.S. and allied military forces with state-of-the-art solutions. By integrating the innovative practices and technologies from leading industries, we are redefining how military systems are conceived, constructed, and marketed. Our systems are powered by Lattice OS, an AI-driven operating system that creates a dynamic, real-time 3D command and control environment. In a world characterized by strategic competition, we are dedicated to delivering cutting-edge advancements in autonomy, AI, computer vision, sensor fusion, and networking technology to military applications swiftly.ABOUT THE POSITIONWe are on the lookout for a talented Security Software Engineer to forge innovative security tools aimed at safeguarding embedded Linux systems and Android devices. The preferred candidate will possess the skills necessary to develop, test, and debug a vital endpoint detection and response agent with essential security functions.KEY RESPONSIBILITIESCreate and enhance cybersecurity tools for real-time embedded Linux and Android systems.Implement an endpoint detection and response agent tailored for Anduril's products.Establish comprehensive testing and qualification protocols for security-critical components.Collaborate with cross-disciplinary teams to pinpoint specific security requirements and devise effective solutions.Conduct code reviews to ensure compliance with security best practices.Keep abreast of evolving security threats and emerging technologies.

Why Join UsBrex is revolutionizing financial management with our AI-powered spend platform, enabling businesses to manage their expenses with confidence through integrated corporate cards, banking, and global payments. Our intuitive software simplifies travel and expense management for tens of thousands of companies, from startups to large enterprises like DoorDash, Flexport, and Compass, who leverage Brex to effectively control spending, reduce costs, and enhance efficiency on a global scale.At Brex, you’ll have the opportunity to push your limits, challenge conventional thinking, and collaborate with some of the industry's brightest minds. We are dedicated to cultivating a diverse team and inclusive culture, believing that your potential should only be limited by your aspirations. We provide the tools, resources, and support necessary for you to advance your career.Engineering at BrexOur engineering team at Brex is dedicated to building scalable systems with intention and speed. We operate with high autonomy and foster deep collaboration across Software, Data, Security, and IT. Our focus is on tackling complex technical challenges, taking ownership of our outcomes, and striving for excellence in every aspect—from architecture to deployment. Here, engineering is regarded as a craft, and builders are encouraged to become leaders.What You’ll DoAs a Senior Security Operations Engineer at Brex, your primary responsibility will involve preventing, detecting, and responding to security threats across our corporate and cloud environments. You will utilize existing systems and create innovative tools to enhance our security capabilities. Our team is integral to corporate security, detection and response, and infrastructure security domains, performing systems engineering and automation to support these functions.Being part of our Security Operations team means you will work closely with Application Security, Corporate Engineering, GRC, and IT to enhance security configurations, promote positive employee behaviors, and proactively prevent incidents. You will also contribute to our open-source project Substation and have the chance to contribute to the Brex Tech Blog. Join a team that is committed to actively engaging with the broader security community while emphasizing mentorship and engineering excellence.We are seeking individuals with a robust background and keen interest in detecting, responding to, and resolving security incidents and challenges.

Become a Catalyst for Positive Change at Axon.At Axon, our mission is to safeguard lives. We tackle the most pressing safety and justice challenges using our innovative ecosystem of devices and cloud software. Our collaborative environment thrives on open communication and diverse perspectives, fostering connection among our customers, communities, and each other.Working at Axon is dynamic, rewarding, and impactful. Here, you'll take initiative and contribute to meaningful change. Embrace continuous growth while dedicating your efforts to a mission that truly matters in an organization that values your contributions.Your Role and ContributionsAs a Senior Application Security Engineer, you will lead security initiatives that are integrated throughout the software development lifecycle. This position focuses on empowering development teams with the necessary tools, knowledge, and processes to create secure applications. You will collaborate closely with developers as a security partner, enhancing our security posture while ensuring speed and innovation.Utilizing your robust software development background and application security expertise, you will create scalable security automation and tooling. This role is ideal for someone who is enthusiastic about process automation, team enablement, and tackling complex security challenges at scale.

Join a Transformative CompanyAt Palantir, we create cutting-edge software that empowers organizations to make data-driven decisions that can save lives, streamline operations, and address critical challenges. Our platforms enable partners to discover groundbreaking treatments, anticipate supply chain disruptions, and assist in locating missing persons, among other vital missions.Role OverviewAs an Application Security Engineer at Palantir, you will play a pivotal role in safeguarding our mission-critical applications against sophisticated threats. The Application Security Team is dedicated to enabling our developers to work efficiently while producing highly secure software. Given the crucial nature of our products, investing in robust application security is paramount.In this dynamic role, you will:• Conduct Comprehensive Security Reviews. You will engage in thorough security assessments of our product and service offerings, employing whitebox, greybox, and blackbox methodologies. Collaborating closely with offensive security teams and engineering departments, you'll help fortify our products against potential threats.• Serve as a Security Expert in Architecture and Design. You will provide expert guidance to product architects and engineers, engaging in threat modeling and risk assessment while implementing essential security controls. Your influence will ensure our products are designed with security as a primary focus.• Lead Strategic Security Initiatives. You will spearhead transformative security initiatives that have far-reaching impacts across the organization. Previous projects have included implementing software supply chain security measures, integrating hardware-backed GPG key signing, and developing new security services.• Identify and Analyze Vulnerabilities. You will take responsibility for discovering innovative methods to detect and rectify security vulnerabilities within our products. This includes utilizing static and dynamic code analysis, conducting security scans, and collaborating with the incident response team on security incidents.This role offers significant autonomy and the resources necessary to effect substantial security enhancements throughout Palantir. We welcome candidates with diverse backgrounds, as curiosity, determination, and a passion for security are the key attributes for success in this position.

Why Join UsAt Brex, we are revolutionizing the financial landscape with our AI-powered spend platform. We empower companies to manage their expenditures with confidence through integrated corporate cards, banking solutions, and global payment systems, all complemented by intuitive software for travel and expenses. Our innovative approach is trusted by tens of thousands of businesses, from dynamic startups to established enterprises, including industry leaders like DoorDash, Flexport, and Compass, to effectively control spending, lower costs, and enhance operational efficiency on a global scale.Joining Brex means embracing a culture that encourages pushing boundaries, questioning the norm, and collaborating with some of the brightest minds in the tech industry. We are dedicated to fostering a diverse workforce and an inclusive environment where your aspirations are only limited by your imagination. We provide you with the tools, resources, and support to cultivate your career and achieve your fullest potential.Engineering at BrexAt Brex, our engineering philosophy is centered on building scalable systems with purpose and agility. Our teams, which encompass Software, Data, Security, and IT, operate with high levels of autonomy and collaboration. We tackle challenging technical issues, take ownership of our results, and strive for excellence in every aspect, from architecture to deployment. Here, engineering is treated as a craft, allowing builders to emerge as leaders.What You’ll DoAs a Senior Application Security Engineer, your primary focus will be on identifying and addressing security vulnerabilities across the Brex platform. You will conduct code and design reviews, perform penetration testing, and manage vulnerabilities. Additionally, you will develop and maintain tools for static and dynamic testing of the Brex platform, as well as support secure developer workflows. As part of the broader Financial Scale organization, you will collaborate closely with Security Operations, GRC, Product Security, Front End Platform, and IT Infrastructure teams.We are seeking candidates with a robust background and a keen interest in penetration testing. You should demonstrate a proven ability to uncover vulnerabilities in complex systems and create exploits to illustrate their potential business impact. This role is highly collaborative and cross-functional, providing you with the opportunity to work alongside various engineering teams at Brex. You should be passionate about engaging with diverse backgrounds, roles, and needs, recognizing that building a world-class financial service necessitates world-class security.Brex is at the forefront of pioneering AI-driven financial services for dynamic, high-impact companies such as Coinbase, Robinhood, and Anthropic. As we embark on the initial stages of integrating AI throughout our product offerings, this role will play a vital part in influencing and shaping the future of financial technology.

At Anduril Industries, we are redefining the future of defense technology. Our mission is to enhance the military capabilities of the U.S. and its allies through innovative technology. We harness the expertise, state-of-the-art technology, and business acumen of the most forward-thinking companies of the 21st century to revolutionize defense systems. Our cutting-edge family of systems operates on Lattice OS, an AI-driven platform that transforms vast data streams into a real-time, 3D command and control center. As global dynamics shift, Anduril is dedicated to delivering the latest advancements in autonomy, AI, computer vision, sensor fusion, and networking technology to the military at an unprecedented speed.ABOUT THE TEAMWe are seeking a visionary leader for our Security Engineering team to develop and enhance world-class defensive measures that safeguard the infrastructure supporting our defense technology products.WHAT YOU'LL DOFoster, mentor, and expand a high-performing team of security engineers.Establish technical direction and set clear standards for engineering excellence and ownership.Collaborate on hiring, performance management, and professional development.Outline and implement the security roadmap for infrastructure, remote access, ZTNA, endpoints, and M&A.Design and deploy security controls across cloud, production, and corporate infrastructures.Create tools and systems to enhance security posture and operational efficiency.Conduct security architecture and design reviews for systems and applications.Work in partnership across infrastructure, IT, product, and security teams to minimize risks while enabling operational efficiency.

Anduril Industries is on the forefront of defense technology, dedicated to enhancing U.S. and allied military capabilities through innovative technology. By integrating the expertise and business models of the most pioneering companies of the 21st century into the defense sector, Anduril is revolutionizing the design, construction, and sale of military systems. Our systems are powered by Lattice OS, an AI-driven operating system that transforms numerous data streams into a real-time, 3D command and control center. As we navigate an era of strategic competition, Anduril is steadfast in its mission to deliver cutting-edge autonomy, AI, computer vision, sensor fusion, and networking technologies to the military in rapid timelines.ABOUT THE ROLEWe are in search of a Security Software Engineer with a focus on cryptographic services and key management to create innovative security tools for our diverse product range. The ideal candidate will be adept at developing, testing, and debugging embedded software with a critical emphasis on security.RESPONSIBILITIESCraft and implement cybersecurity tools for real-time embedded systems, including embedded Linux and Android.Design and develop resilient software that manages all aspects of key handling on embedded platforms—from loading through sanitization.Create comprehensive testing and qualification protocols for security-sensitive components.Work collaboratively with cross-disciplinary teams to identify security requirements and execute effective solutions.Conduct code reviews and enforce compliance with security best practices.Keep abreast of the latest security threats and technological advancements.

Coupang is a major force in South Korean e-commerce, focused on making daily life easier for millions of customers. The company combines the energy of a startup with the reach and stability of a global public business, supporting rapid innovation and new service launches. Team members value initiative, growth, and the opportunity to make a real impact. About the Role The Senior Staff Software Engineer - Security will play a central role in strengthening the security and reliability of Coupang’s core platforms. This position is based in Mountain View or Seattle. The work centers on technical leadership, architecture, and hands-on software development. The goal: build secure, dependable, and scalable systems that support Coupang’s growth and protect customer trust. What You Will Do Lead security architecture and design for backend systems Drive technical decisions that improve platform security, quality, and reliability Mentor and guide fellow engineers on security best practices Collaborate closely with product teams on high-impact projects Contribute directly to codebases, setting high standards for secure development What We’re Looking For Extensive experience in software engineering with a focus on security Strong background in building and scaling secure backend systems Proven ability to provide technical leadership and architectural direction Experience mentoring engineers and collaborating across teams Join Coupang to help shape the future of commerce and make a lasting difference in a high-tech, connected world.

Role Overview Palantir Technologies is hiring an Information Security Engineer with a focus on Insider Risk in Seattle, WA. This role centers on protecting sensitive information by identifying, analyzing, and reducing risks from internal threats. The position plays a key part in maintaining the security of client data. What You Will Do Detect and assess potential insider threats that could affect data security. Work with teams across the company to strengthen security measures and processes. Contribute to decisions that shape Palantir’s approach to insider risk and information integrity.